Michaux's Wormwood
Artemisia michauxiana
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Artemisia
- Species:
- Artemisia michauxiana
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 3-4 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- jul, aug, sep
- Bloom Colors:
- Yellow
Native Range
United States: California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming, Canada: Alberta, British Columbia, Saskatchewan, Yukon
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)
Host Plant for Caterpillars
Agonopterix clarkei, Aroga eldorada, Caloreas multimarginata, Epiblema benignata, Eucosma agricolana, Larch Coneworm Moth (Eucosma mandana), Oidaematophorus lienigianus, Phaneta dorsiatomana, Painted Lady (Vanessa cardui)
Soil Requirements
- Soil Type:
- well-drained, rocky or sandy loam
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- commonly found in alpine and subalpine meadows
Germination Information
Pre-treatment: 5 month outdoor winter stratification or a minimum of 3 month cold, moist stratification for optimum germination.
Establishment: Seeds are hand collected in mid September when achenes turn grey and are easily removed from the disc. Seeds are collected in paper bags and kept in a well ventilated drying shed prior to cleaning. A. michauxiana occurs in rocky places in the mountains, from B.C. and Alberta to California, south to Nevada, Utah and Wyoming.
Source: npn.rngr.net